Finding the Fourth Proportional to 2,506.71, 3,457.40 and 1,621.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,506.71 : 3,457.40 = 1,621.83 : x
2. Step 2: Convert to fraction form
   2,506.71/3,457.40 = 1,621.83/x
3. Step 3: Cross multiply
   2,506.71x = 3,457.40 × 1,621.83
4. Step 4: Simplify right side
   2,506.71x = 5,607,306.93
5. Step 5: Solve for x
   x = 5,607,306.93/2,506.71
6. Step 6: Final answer
   x = 2,236.92